mirror of
https://github.com/holub/mame
synced 2025-04-20 15:32:45 +03:00
williams: small cleanup, fix splat regression
This commit is contained in:
hap
parent
c0f4bcb5d4
commit
e2327efaeb
@ -1654,8 +1654,10 @@ void williams_state::joust(machine_config &config)
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void williams_state::splat(machine_config &config)
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{
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williams_base(config);
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WILLIAMS_BLITTER_SC2(config, m_blitter, 0xc000, m_maincpu, m_videoram);
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williams_muxed(config);
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WILLIAMS_BLITTER_SC2(config, m_blitter, 0xc000, m_maincpu, m_videoram);
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m_maincpu->set_addrmap(AS_PROGRAM, &williams_state::main_map_blitter);
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}
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void williams_state::alienar(machine_config &config)
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@ -24,7 +24,7 @@ TIMER_DEVICE_CALLBACK_MEMBER(williams_state::va11_callback)
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if (scanline == 256)
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return;
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/* the IRQ signal comes into CB1, and is set to VA11 */
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// the IRQ signal comes into CB1, and is set to VA11
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m_pia[1]->cb1_w(BIT(scanline, 5));
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}
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@ -88,7 +88,7 @@ void williams2_state::machine_start()
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{
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williams_state::machine_start();
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/* configure memory banks */
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// configure memory banks
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m_mainbank->configure_entries(0, 4, memregion("maincpu")->base() + 0x10000, 0x8000);
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}
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@ -97,7 +97,7 @@ void williams2_state::machine_reset()
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{
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williams_state::machine_reset();
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/* make sure our banking is reset */
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// make sure our banking is reset
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bank_select_w(0);
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}
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@ -111,29 +111,29 @@ void williams2_state::machine_reset()
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void williams_state::vram_select_w(u8 data)
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{
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/* VRAM/ROM banking from bit 0 */
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// VRAM/ROM banking from bit 0
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if (BIT(data, 0))
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m_rom_view.select(0);
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else
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m_rom_view.disable();
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/* cocktail flip from bit 1 */
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// cocktail flip from bit 1
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m_cocktail = BIT(data, 1);
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}
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void williams2_state::bank_select_w(u8 data)
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{
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/* the low two bits control the paging */
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// the low two bits control the paging
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switch (data & 0x03)
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{
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/* page 0 is video ram */
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// page 0 is video ram
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case 0:
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m_rom_view.disable();
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m_palette_view.disable();
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break;
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/* pages 1 and 2 are ROM */
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// pages 1 and 2 are ROM
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case 1:
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case 2:
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m_mainbank->set_entry((data & 6) >> 1);
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@ -141,7 +141,7 @@ void williams2_state::bank_select_w(u8 data)
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m_palette_view.disable();
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break;
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/* page 3 accesses palette RAM; the remaining areas are as if page 1 ROM was selected */
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// page 3 accesses palette RAM; the remaining areas are as if page 1 ROM was selected
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case 3:
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m_mainbank->set_entry((data & 4) >> 1);
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m_rom_view.select(0);
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@ -246,7 +246,7 @@ void williams_state::cmos_4bit_w(offs_t offset, u8 data)
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void williams_state::watchdog_reset_w(u8 data)
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{
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/* yes, the data bits are checked for this specific value */
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// yes, the data bits are checked for this specific value
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if (data == 0x39)
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m_watchdog->watchdog_reset();
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}
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@ -254,7 +254,7 @@ void williams_state::watchdog_reset_w(u8 data)
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void williams2_state::watchdog_reset_w(u8 data)
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{
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/* yes, the data bits are checked for this specific value */
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// yes, the data bits are checked for this specific value
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if ((data & 0x3f) == 0x14)
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m_watchdog->watchdog_reset();
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}
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@ -353,11 +353,11 @@ void defender_state::bank_select_w(u8 data)
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u8 mayday_state::protection_r(offs_t offset)
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{
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/* Mayday does some kind of protection check that is not currently understood */
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/* However, the results of that protection check are stored at $a190 and $a191 */
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/* These are compared against $a193 and $a194, respectively. Thus, to prevent */
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/* the protection from resetting the machine, we just return $a193 for $a190, */
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/* and $a194 for $a191. */
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// Mayday does some kind of protection check that is not currently understood
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// However, the results of that protection check are stored at $a190 and $a191
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// These are compared against $a193 and $a194, respectively. Thus, to prevent
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// the protection from resetting the machine, we just return $a193 for $a190,
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// and $a194 for $a191.
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return m_videoram[0xa193 + offset];
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}
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@ -409,6 +409,12 @@ void blaster_state::machine_reset()
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}
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void blaster_state::video_control_w(u8 data)
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{
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m_video_control = data;
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}
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void blaster_state::blaster_vram_select_w(u8 data)
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{
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// VRAM/ROM banking from bit 0
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@ -495,20 +501,16 @@ void tshoot_state::machine_start()
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void tshoot_state::maxvol_w(int state)
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{
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/* something to do with the sound volume */
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// something to do with the sound volume
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logerror("tshoot maxvol = %d (%s)\n", state, machine().describe_context());
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}
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void tshoot_state::lamp_w(u8 data)
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{
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/* set the grenade lamp */
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m_grenade_lamp = BIT(~data, 2);
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/* set the gun lamp */
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m_gun_lamp = BIT(~data, 3);
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/* gun coil */
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m_p1_gun_recoil = BIT(data, 4);
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/* feather coil */
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m_feather_blower = BIT(data, 5);
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}
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@ -169,6 +169,7 @@ void williams_state::video_start()
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void blaster_state::video_start()
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{
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williams_state::video_start();
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save_item(NAME(m_color0));
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save_item(NAME(m_video_control));
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}
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@ -178,7 +179,7 @@ void williams2_state::video_start()
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{
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williams_state::video_start();
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/* create the tilemap */
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// create the tilemap
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m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(williams2_state::get_tile_info)), TILEMAP_SCAN_COLS, 24,16, 128,16);
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m_bg_tilemap->set_scrolldx(2, 0);
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@ -227,35 +228,35 @@ uint32_t blaster_state::screen_update(screen_device &screen, bitmap_rgb32 &bitma
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uint8_t const *const scanline_control = &m_videoram[0xbc00];
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rgb_t pens[16];
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/* precompute the palette */
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// precompute the palette
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for (int x = 0; x < 16; x++)
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pens[x] = m_palette->pen_color(m_paletteram[x]);
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/* if we're blitting from the top, start with a 0 for color 0 */
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// if we're blitting from the top, start with a 0 for color 0
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if (cliprect.min_y == screen.visible_area().min_y || !(m_video_control & 1))
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m_color0 = m_palette->pen_color(palette_0[0] ^ 0xff);
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/* loop over rows */
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// loop over rows
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for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
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{
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int const erase_behind = m_video_control & scanline_control[y] & 2;
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uint8_t *const source = &m_videoram[y];
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uint32_t *const dest = &bitmap.pix(y);
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/* latch a new color0 pen? */
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// latch a new color0 pen?
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if (m_video_control & scanline_control[y] & 1)
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m_color0 = m_palette->pen_color(palette_0[y] ^ 0xff);
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/* loop over columns */
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// loop over columns
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for (int x = cliprect.min_x & ~1; x <= cliprect.max_x; x += 2)
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{
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uint8_t const pix = source[(x/2) * 256];
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/* clear behind us if requested */
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// clear behind us if requested
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if (erase_behind)
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source[(x/2) * 256] = 0;
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/* now draw */
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// now draw
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dest[x+0] = (pix & 0xf0) ? pens[pix >> 4] : rgb_t(m_color0 | pens[0]);
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dest[x+1] = (pix & 0x0f) ? pens[pix & 0x0f] : rgb_t(m_color0 | pens[0]);
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}
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@ -268,20 +269,20 @@ uint32_t williams2_state::screen_update(screen_device &screen, bitmap_rgb32 &bit
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{
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rgb_t pens[16];
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/* draw the background */
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// draw the background
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m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
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/* fetch the relevant pens */
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// fetch the relevant pens
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for (int x = 1; x < 16; x++)
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pens[x] = m_palette->pen_color(m_fg_color * 16 + x);
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/* loop over rows */
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// loop over rows
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for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
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{
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uint8_t const *const source = &m_videoram[y];
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uint32_t *const dest = &bitmap.pix(y);
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/* loop over columns */
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// loop over columns
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for (int x = cliprect.min_x & ~1; x <= cliprect.max_x; x += 2)
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{
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uint8_t const pix = source[(x/2) * 256];
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@ -300,21 +301,21 @@ uint32_t mysticm_state::screen_update(screen_device &screen, bitmap_rgb32 &bitma
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{
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rgb_t pens[16];
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/* draw the background */
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// draw the background
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m_bg_tilemap->mark_all_dirty();
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m_bg_tilemap->draw(screen, bitmap, cliprect, TILEMAP_DRAW_OPAQUE | TILEMAP_DRAW_ALL_CATEGORIES, 0);
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/* loop over rows */
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// loop over rows
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for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
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{
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/* fetch the relevant pens */
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// fetch the relevant pens
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for (int x = 1; x < 16; x++)
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pens[x] = m_palette->pen_color(color_decode(m_fg_color, 1, y) * 16 + x);
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uint8_t const *const source = &m_videoram[y];
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uint32_t *const dest = &bitmap.pix(y);
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/* loop over columns */
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// loop over columns
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for (int x = cliprect.min_x & ~1; x <= cliprect.max_x; x += 2)
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{
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uint8_t const pix = source[(x/2) * 256];
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@ -422,7 +423,6 @@ rgb_t williams2_state::calc_col(uint16_t lo, uint16_t hi)
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};
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// update the palette entry
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const uint16_t i = (hi >> 4) & 15;
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const uint16_t ub = (hi >> 0) & 15;
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const uint16_t ug = (lo >> 4) & 15;
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@ -449,10 +449,10 @@ rgb_t williams2_state::calc_col(uint16_t lo, uint16_t hi)
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void williams2_state::paletteram_w(offs_t offset, u8 data)
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{
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/* set the new value */
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// set the new value
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m_paletteram[offset] = data;
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/* pull the associated low/high bytes */
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// pull the associated low/high bytes
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uint16_t entry_lo = m_paletteram[offset & ~1];
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uint16_t entry_hi = m_paletteram[offset | 1];
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@ -510,7 +510,7 @@ TILE_GET_INFO_MEMBER(williams2_state::get_tile_info)
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int const data = m_tileram[tile_index];
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int const y = (tile_index >> 1) & 7;
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/* On tshoot and inferno, IC79 is a 74LS157 selector jumpered to be enabled */
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// On tshoot and inferno, IC79 is a 74LS157 selector jumpered to be enabled
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int const color = y;
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tileinfo.set(0, data & mask, color, (data & ~mask) ? TILE_FLIPX : 0);
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@ -539,7 +539,7 @@ int mysticm_state::color_decode(uint8_t base_col, int sig_J1, int y)
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// FIXME: Investigate further.
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/* IC79 is a 74LS85 comparator that controls the low bit */
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// IC79 is a 74LS85 comparator that controls the low bit
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int const a = 1 | ((base_col & 1) << 2) | ((base_col & 1) << 3);
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int const b = (sig_W12 << 0) | (sig_W13 << 1) | (0 << 2) | (sig_J1 << 3);
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int const color = (a > b) || ((a == b) && !sig_W11);
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@ -575,31 +575,31 @@ TILE_GET_INFO_MEMBER(joust2_state::get_tile_info)
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int const mask = m_gfxdecode->gfx(0)->elements() - 1;
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int const data = m_tileram[tile_index];
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/* IC79 is a 74LS157 selector jumpered to be disabled */
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// IC79 is a 74LS157 selector jumpered to be disabled
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int const color = 0;
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tileinfo.set(0, data & mask, color, (data & ~mask) ? TILE_FLIPX : 0);
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}
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/* based on the board type, only certain bits are used */
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/* the rest are determined by other factors */
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// based on the board type, only certain bits are used
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// the rest are determined by other factors
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void williams2_state::bg_select_w(u8 data)
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{
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/* IC79 is a 74LS157 selector jumpered to be enabled */
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// IC79 is a 74LS157 selector jumpered to be enabled
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m_bg_tilemap->set_palette_offset((data & 0x38) << 4);
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}
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void mysticm_state::bg_select_w(u8 data)
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{
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/* IC79 is a 74LS85 comparator that controls the low bit */
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// IC79 is a 74LS85 comparator that controls the low bit
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m_bg_color = data;
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m_bg_tilemap->mark_all_dirty();
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}
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void joust2_state::bg_select_w(u8 data)
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{
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/* IC79 is a 74LS157 selector jumpered to be disabled */
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// IC79 is a 74LS157 selector jumpered to be disabled
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m_bg_tilemap->set_palette_offset((data & 0x3f) << 4);
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}
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@ -622,16 +622,3 @@ void williams2_state::xscroll_high_w(u8 data)
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m_tilemap_xscroll = (m_tilemap_xscroll & 0x00f) | (data << 4);
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m_bg_tilemap->set_scrollx(0, (m_tilemap_xscroll & 7) + ((m_tilemap_xscroll >> 3) * 6));
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}
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/*************************************
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*
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* Blaster-specific enhancements
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*
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*************************************/
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void blaster_state::video_control_w(u8 data)
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{
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m_video_control = data;
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}
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@ -65,7 +65,6 @@ The game works perfectly. However the code is a bit of a bodge-job, originally f
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then updated for HBMAME 0.148u1. It could do with a cleanup, and removal of the various hacks. Support
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of save-state is also needed.
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***********************************************************************************************************/
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#include "emu.h"
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@ -135,6 +134,7 @@ private:
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* Address Map
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*
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*************************************/
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void wmg_state::wmg_cpu1(address_map &map)
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{
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map(0x0000, 0xbfff).ram().share(m_videoram);
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@ -168,6 +168,7 @@ void wmg_state::wmg_cpu2(address_map &map)
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map(0xf000, 0xffff).bankr(m_soundbank);
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}
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/***************************************************************
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*
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* Inputs, banked. One set for each game.
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@ -176,6 +177,7 @@ void wmg_state::wmg_cpu2(address_map &map)
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* JOYSTICK PLAYER(2) is really JOYSTICKRIGHT on WMG hardware
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*
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***************************************************************/
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static INPUT_PORTS_START( wmg )
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PORT_START("IN0")
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PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(FUNC(wmg_state::wmg_mux_r<0>))
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@ -193,7 +195,7 @@ static INPUT_PORTS_START( wmg )
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PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_TILT )
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PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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/* menu */
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/* menu */
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PORT_START("X0") // IN000 (game,port,player)
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_NAME("Menu/Left/Up")
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_NAME("Menu/Left/Down")
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@ -214,7 +216,7 @@ static INPUT_PORTS_START( wmg )
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PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("Menu/Reverse")
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PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Menu/Inviso or Flap")
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/* robotron */
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/* robotron */
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PORT_START("X2") // IN100
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_NAME("Robotron/Left/Move Up")
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_NAME("Robotron/Left/Move Down")
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@ -230,7 +232,7 @@ static INPUT_PORTS_START( wmg )
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PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY PORT_NAME("Robotron/Right/Fire Right")
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PORT_BIT( 0xfc, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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/* joust */
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/* joust */
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||||
PORT_START("X4") // IN201
|
||||
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1) PORT_NAME("Joust/P1/Left")
|
||||
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1) PORT_NAME("Joust/P1/Right")
|
||||
@ -250,7 +252,7 @@ static INPUT_PORTS_START( wmg )
|
||||
PORT_START("X6") // IN210
|
||||
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
|
||||
|
||||
/* stargate */
|
||||
/* stargate */
|
||||
PORT_START("X7") // IN300
|
||||
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Stargate/Fire")
|
||||
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Stargate/Thrust")
|
||||
@ -266,7 +268,7 @@ static INPUT_PORTS_START( wmg )
|
||||
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Stargate/Inviso")
|
||||
PORT_BIT( 0xfc, IP_ACTIVE_HIGH, IPT_UNKNOWN )
|
||||
|
||||
/* bubbles */
|
||||
/* bubbles */
|
||||
PORT_START("X9") // IN400
|
||||
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_NAME("Bubbles/Up")
|
||||
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_NAME("Bubbles/Down")
|
||||
@ -279,7 +281,7 @@ static INPUT_PORTS_START( wmg )
|
||||
PORT_START("X10") // IN410
|
||||
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNKNOWN )
|
||||
|
||||
/* defender */
|
||||
/* defender */
|
||||
PORT_START("X11") // IN500
|
||||
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Defender/Fire")
|
||||
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Defender/Thrust")
|
||||
@ -294,7 +296,7 @@ static INPUT_PORTS_START( wmg )
|
||||
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_2WAY PORT_NAME("Defender/Up")
|
||||
PORT_BIT( 0xfe, IP_ACTIVE_HIGH, IPT_UNKNOWN )
|
||||
|
||||
/* splat - there are no P2 controls, so it can only be played by a single player */
|
||||
/* splat - there are no P2 controls, so it can only be played by a single player */
|
||||
PORT_START("X13") // IN601
|
||||
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Left/Move Up")
|
||||
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Left/Move Down")
|
||||
@ -319,6 +321,7 @@ static INPUT_PORTS_START( wmg )
|
||||
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNKNOWN )
|
||||
INPUT_PORTS_END
|
||||
|
||||
|
||||
/*************************************
|
||||
*
|
||||
* Bankswitching
|
||||
@ -430,6 +433,7 @@ void wmg_state::machine_reset()
|
||||
m_maincpu->reset();
|
||||
}
|
||||
|
||||
|
||||
/*************************************
|
||||
*
|
||||
* Input selector code
|
||||
@ -458,7 +462,7 @@ ioport_value wmg_state::wmg_mux_r()
|
||||
|
||||
u8 wmg_state::wmg_pia_0_r(offs_t offset)
|
||||
{
|
||||
/* if player presses P1 and P2 in a game, return to the menu.
|
||||
/* if player presses P1 and P2 in a game, return to the menu.
|
||||
Since there is no code in rom to handle this, it must be a hardware feature
|
||||
which probably just resets the cpu. */
|
||||
|
||||
@ -476,6 +480,7 @@ u8 wmg_state::wmg_pia_0_r(offs_t offset)
|
||||
return data;
|
||||
}
|
||||
|
||||
|
||||
/*************************************
|
||||
*
|
||||
* Machine Driver
|
||||
@ -542,11 +547,13 @@ void wmg_state::wmg(machine_config &config)
|
||||
WILLIAMS_BLITTER_SC1(config, m_blitter, 0xc000, m_maincpu, m_videoram);
|
||||
}
|
||||
|
||||
|
||||
/*************************************
|
||||
*
|
||||
* Roms
|
||||
*
|
||||
*************************************/
|
||||
|
||||
ROM_START( wmg )
|
||||
ROM_REGION( 0x80000, "maincpu", 0 )
|
||||
ROM_LOAD( "wmg.cpu", 0x00000, 0x80000, CRC(975516ec) SHA1(571aaf9bff8ebfc36448cd9394b47bcfae7d1b83) )
|
||||
|
||||
Loading…
Reference in New Issue
Block a user